Common drugs that are CYP450 inducers?
Carbamazepine
Rifampacin
Alcohol
Phenytoin
Griseofluvin
Phenobarbitone
Sulphonyureas
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Common CYP450 Inhibitors?
Sodium valproate
Isoniazid
Cimetidine
Ketoconazole
Fluconazole
Alcohol & Grapefruit juice
Chloramphenicol
Erythromycin
Sulfonamides
Ciprofloxacin
Omeprazole
Metronidazole
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CYP450 Substrates?
Warfarin
Corticosteroids
Oral contraceptives
Aminophylline/theophylline
Statins
Tricyclic Antidepressant
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What do CYP inhibitors do to substrates?
Increases plasma concentration
Therefore increases toxicity risk
What do CYP inducers do to Substrates?
Decreases plasma concentration which can lead to ineffectiveness